Finding the Fourth Proportional to 528,583.75, 729,445.96 and 286,866.26
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Solution
The fourth proportional to 528,583.75, 729,445.96 and 286,866.26 is: 395,875.65
Step by Step Solution
- Step 1: Write the proportion equation
528,583.75 : 729,445.96 = 286,866.26 : x - Step 2: Convert to fraction form
528,583.75/729,445.96 = 286,866.26/x - Step 3: Cross multiply
528,583.75x = 729,445.96 × 286,866.26 - Step 4: Simplify right side
528,583.75x = 209,253,434,417.31 - Step 5: Solve for x
x = 209,253,434,417.31/528,583.75 - Step 6: Final answer
x = 395,875.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.